E2Manager/handlers/rmrmsghandlers/x2_reset_request_notification_handler.go

   1 //
   2 // Copyright 2019 AT&T Intellectual Property
   3 // Copyright 2019 Nokia
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the "License");
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 //      http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18 package rmrmsghandlers
  19
  20 // #cgo CFLAGS: -I../../3rdparty/asn1codec/inc/  -I../../3rdparty/asn1codec/e2ap_engine/
  21 // #cgo LDFLAGS: -L ../../3rdparty/asn1codec/lib/ -L../../3rdparty/asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
  22 // #include <asn1codec_utils.h>
  23 // #include <x2reset_response_wrapper.h>
  24 import "C"
  25 import (
  26         "e2mgr/e2pdus"
  27         "e2mgr/enums"
  28         "e2mgr/logger"
  29         "e2mgr/managers"
  30         "e2mgr/models"
  31         "e2mgr/rmrCgo"
  32         "e2mgr/services"
  33         "e2mgr/services/rmrsender"
  34         "e2mgr/utils"
  35         "fmt"
  36         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  37         "unsafe"
  38 )
  39
  40 type X2ResetRequestNotificationHandler struct {
  41         logger                 *logger.Logger
  42         rnibDataService        services.RNibDataService
  43         ranStatusChangeManager managers.IRanStatusChangeManager
  44         rmrSender              *rmrsender.RmrSender
  45 }
  46
  47 func NewX2ResetRequestNotificationHandler(logger *logger.Logger, rnibDataService services.RNibDataService, ranStatusChangeManager managers.IRanStatusChangeManager, rmrSender *rmrsender.RmrSender) X2ResetRequestNotificationHandler {
  48         return X2ResetRequestNotificationHandler{
  49                 logger:                 logger,
  50                 rnibDataService:        rnibDataService,
  51                 ranStatusChangeManager: ranStatusChangeManager,
  52                 rmrSender:              rmrSender,
  53         }
  54 }
  55
  56 func (h X2ResetRequestNotificationHandler) Handle(request *models.NotificationRequest) {
  57
  58         h.logger.Infof("#X2ResetRequestNotificationHandler.Handle - Ran name: %s", request.RanName)
  59
  60         nb, rNibErr := h.rnibDataService.GetNodeb(request.RanName)
  61         if rNibErr != nil {
  62                 h.logger.Errorf("#X2ResetRequestNotificationHandler.Handle - failed to retrieve nodeB entity. RanName: %s. Error: %s", request.RanName, rNibErr.Error())
  63                 h.logger.Infof("#X2ResetRequestNotificationHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms", utils.ElapsedTime(request.StartTime))
  64                 return
  65         }
  66
  67         h.logger.Debugf("#X2ResetRequestNotificationHandler.Handle - nodeB entity retrieved. RanName %s, ConnectionStatus %s", nb.RanName, nb.ConnectionStatus)
  68
  69         if nb.ConnectionStatus == entities.ConnectionStatus_SHUTTING_DOWN {
  70                 h.logger.Warnf("#X2ResetRequestNotificationHandler.Handle - nodeB entity in incorrect state. RanName %s, ConnectionStatus %s", nb.RanName, nb.ConnectionStatus)
  71                 h.logger.Infof("#X2ResetRequestNotificationHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms", utils.ElapsedTime(request.StartTime))
  72                 return
  73         }
  74
  75         if nb.ConnectionStatus != entities.ConnectionStatus_CONNECTED {
  76                 h.logger.Errorf("#X2ResetRequestNotificationHandler.Handle - nodeB entity in incorrect state. RanName %s, ConnectionStatus %s", nb.RanName, nb.ConnectionStatus)
  77                 h.logger.Infof("#X2ResetRequestNotificationHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms", utils.ElapsedTime(request.StartTime))
  78                 return
  79         }
  80
  81         msg, err := createX2ResetResponseNotification(request)
  82         if err != nil {
  83                 h.logger.Errorf("#X2ResetRequestNotificationHandler.Handle - %s", err)
  84                 return
  85         }
  86
  87         _ = h.rmrSender.Send(msg)
  88         h.logger.Infof("#X2ResetRequestNotificationHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms", utils.ElapsedTime(request.StartTime))
  89         _ = h.ranStatusChangeManager.Execute(rmrCgo.RAN_RESTARTED, enums.RAN_TO_RIC, nb)
  90 }
  91
  92 func createX2ResetResponseNotification(request *models.NotificationRequest) (*models.RmrMessage, error) {
  93
  94         packedBuffer := make([]C.uchar, e2pdus.MaxAsn1PackedBufferSize)
  95         errorBuffer := make([]C.char, e2pdus.MaxAsn1CodecMessageBufferSize)
  96         var payloadSize = C.ulong(e2pdus.MaxAsn1PackedBufferSize)
  97
  98         if status := C.build_pack_x2reset_response(&payloadSize, &packedBuffer[0], C.ulong(e2pdus.MaxAsn1CodecMessageBufferSize), &errorBuffer[0]); !status {
  99                 return nil, fmt.Errorf("failed to build and pack the reset response message %s ", C.GoString(&errorBuffer[0]))
 100         }
 101         payload := C.GoBytes(unsafe.Pointer(&packedBuffer[0]), C.int(payloadSize))
 102         msg := models.NewRmrMessage(rmrCgo.RIC_X2_RESET_RESP, request.RanName, payload)
 103         return msg, nil
 104 }